Patents by Inventor Tetsuya Saito

Tetsuya Saito has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090031738
    Abstract: A refrigerating machine includes a compressor for compressing a refrigerant, a radiator for radiating heat from the refrigerant discharged from the compressor, an expander for expanding the refrigerant discharged from the radiator, and an evaporators for evaporating the refrigerant discharged from the expanders, all connected in series. The refrigerating machine also includes a refrigerant flow regulator for regulating the amount of refrigerant flowing into the expander and a controller for controlling the compressor and the refrigerant flow regulator. At a stop of the compressor, the controller controls the refrigerant flow regulator to reduce the amount of refrigerant flowing into the expander.
    Type: Application
    Filed: April 27, 2006
    Publication date: February 5, 2009
    Inventors: Tomoichiro Tamura, Masaya Honma, Kou Komori, Tetsuya Saito
  • Publication number: 20080168781
    Abstract: A compressor 1, a radiator 2, an expander 3, and an evaporator 4 are connected in series to define a refrigerating cycle. A bypass circuit 6 that bypasses the expander 3, an on-off valve 7 disposed in the bypass circuit 6, and a controller C1 for controlling an opening of the on-off valve 7 are provided in the refrigerating cycle. During defrosting, the controller C1 controls the on-off valve 7 so that a refrigerant may flow through the bypass circuit 6, thereby avoiding reduction in the amount of flow of the refrigerant during defrosting and preventing the defrosting operation from being prolonged.
    Type: Application
    Filed: February 8, 2006
    Publication date: July 17, 2008
    Inventors: Yuuichi Yakumaru, Tetsuya Saito, Tomoichiro Tamura, Masaya Honma
  • Publication number: 20080163818
    Abstract: A substrate heating apparatus of the present invention, which heats a substrate mounted on a mount table 104 having heating means 108, in a processing vessel 102, includes a supporting part 202 made from a first material to support the mount table, a sealing part 204 made from a second material different from the first material in heat conductivity to seal the supporting part and the processing vessel and a joint part 206 for joining the supporting part and the sealing part in an airtight manner. With the constitution, by selecting the first material and the second material of different heat conductivities properly, it is possible to reduce a heat gradient between the top of the mount table and the bottom of the mount table. As a result, it is possible to shorten a supporting structure for the mount table, in length.
    Type: Application
    Filed: December 6, 2007
    Publication date: July 10, 2008
    Inventors: Tetsuya Saito, Shigeru Kasai
  • Publication number: 20080117237
    Abstract: There is disclosed a liquid crystal driving circuit configured to supply an analog voltage in accordance with digital grayscale data to each of a plurality of signal lines, said circuit comprising: a reference voltage generation circuit configured to output analog reference voltages corresponding to each of said digital grayscale data; a plurality of buffer amplifiers configured to individually perform buffering of said respective analog reference voltages; a grayscale mode circuit configured to determine a grayscale number of said digital grayscale data based on a grayscale mode signal supplied from the outside; and an amplifier enable circuit configured to set each of said plurality of buffer amplifiers to an enable state or a disable state based on an output signal of said grayscale mode circuit.
    Type: Application
    Filed: January 18, 2008
    Publication date: May 22, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuya SAITO, Hironori Minamizaki, Tetsuro Itakura
  • Patent number: 7358951
    Abstract: There is disclosed a liquid crystal driving circuit configured to supply an analog voltage in accordance with digital grayscale data to each of a plurality of signal lines, said circuit comprising: a reference voltage generation circuit configured to output analog reference voltages corresponding to each of said digital grayscale data; a plurality of buffer amplifiers configured to individually perform buffering of said respective analog reference voltages; a grayscale mode circuit configured to determine a grayscale number of said digital grayscale data based on a grayscale mode signal supplied from the outside; and an amplifier enable circuit configured to set each of said plurality of buffer amplifiers to an enable state or a disable state based on an output signal of said grayscale mode circuit.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: April 15, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Saito, Hironori Minamizaki, Tetsuro Itakura
  • Patent number: 7350366
    Abstract: The present invention provides a heat pump including: a compressor; a radiator; a first throttling device having a variable opening; an expander; a second throttling device having a variable opening; an evaporator; piping that connects the compressor, the radiator, the first throttling device, the expander, the second throttling device, and the evaporator so that refrigerant circulates thorough the elements in that order; and a control device for controlling the opening of the first throttling device and the opening of the second throttling device. This heat pump is capable of independently controlling the pressure of the refrigerant flowing into the expander (intermediate pressure) and pressure in a high-pressure side of a refrigeration cycle, and also is capable of size reduction, or in some cases elimination, of a receiver for the refrigerant.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: April 1, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuuichi Yakumaru, Tomoichiro Tamura, Tetsuya Saito, Masaya Honma
  • Publication number: 20080049068
    Abstract: A scanner unit is revolvable disposed to a recording unit. The recording unit and the scanner unit are coupled with each other with a damper unit including a holder, a rod, and a spring. The damper unit is disposed so that the operating direction of the spring switches in process of the opening and the closing of the scanner unit. A guiding surface capable of abutting on the projection disposed on the rod is provided in the recording unit. The projection abuts on the guiding surface before the operating direction of the spring switches in process of the movement of the scanner unit from its opened position to its closed position.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 28, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Saito, Atsushi Yokomizo
  • Patent number: 7317181
    Abstract: A surface mount type light-emitting unit includes a light-emitting device. A first lead is connected electrically to a first electrode of the light-emitting device. A second lead is connected electrically to a second electrodc of the light-emitting device. A clear insulator seals the light-emitting device, a section connecting the first electrode to the first lead and a section connecting the second electrode to the second lead. An end of the first lead, forming a reflecting section, is molded into a cup-shaped portion having a flat bottom. The light-emitting device is bonded to the flat bottom. A surface of the reflecting section opposed to the flat bottom is exposed to a surface of thc insulator.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: January 8, 2008
    Assignees: Hitachi Cable, Ltd., Stanley Electric Co. Ltd.
    Inventors: Gen Murakami, Tetsuya Saito, Atsushi Otaka, Toshiaki Morikawa, Tomoaki Abe, Dai Aoki
  • Publication number: 20070163713
    Abstract: A processing system that can supply a material gas produced inside a material reservoir tank into a processing apparatus while generating almost no pressure loss is provided. In a processing system comprising: a processing apparatus including a gas injection means 42 for injecting a specific material gas into a processing vessel 26 in order to provide specific processing to an object to be processed W, said material gas being produced from a metallic compound material M with low vapor pressure; and a gas supply system 24 for supplying said specific material gas to said gas injection means, said gas injection means is a shower head portion and said gas supply system provides: a gas passage 56 extending upwardly from said showerhead portion; a material reservoir tank 58 attached to the upper-end portion of said gas passage for containing said metallic compound material therein; and an open/close valve 60 for opening/closing said gas passage.
    Type: Application
    Filed: August 25, 2003
    Publication date: July 19, 2007
    Inventors: Shigeru Kasai, Sumi Tanaka, Tetsuya Saito, Norihiko Yamamoto, Kenichi Yanagitani
  • Publication number: 20070131168
    Abstract: The invention relates to a gas supplying unit to be arranged to hermetically fit in an opening formed at a ceiling part of a processing container for conducting a process to a substrate. The gas supplying unit includes a plurality of nickel members. A large number of gas-supplying holes is formed at a lower surface of the gas supplying unit, a process gas is adapted to be supplied from the large number of gas-supplying holes into the processing container, and the plurality of nickel members is fixed to each other via an intermediate member for preventing sticking made of a material different from nickel.
    Type: Application
    Filed: October 27, 2006
    Publication date: June 14, 2007
    Inventors: Hisashi Gomi, Tetsuya Saito, Takashi Kakegawa, Takahisa Mase, Makoto Koizumi, Kunihiro Tada, Satoshi Wakabayashi, Kensaku Narushima, Fang Cheng
  • Patent number: 7204925
    Abstract: A structure and a method of preventing electrolytic corrosion for a magnesium alloy member (20), the structure wherein a first coated layer (11) formed by electro deposition and a second coated layer (12) formed by distributing PTFE particles on the first coated layer (11) are covered on the surface of a tightening member (1) at least on a surface coming into contact with the magnesium alloy member (20), whereby, the electrolytic corrosion of the magnesium alloy member can be prevented at a low cost by insulating a tightening member such as a steel bolt and a washer from the magnesium alloy member, and an adhesiveness therebetween can be sufficiently assured.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: April 17, 2007
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Sadaharu Matsumura, Tsuyoshi Kawabe, Tetsuya Saito, Katsumi Sakamoto, Ryosuke Kamegamori
  • Publication number: 20070068178
    Abstract: A heat pump of the present invention has a compressor and an expander coupled with a common axis of rotation, a first throttling device disposed in a circulation passage of refrigerant, and a second throttling device disposed in a bypass passage diverted from the expander. A control device controls the openings of these throttling devices. The control device executes a first controlling in which the opening of the first throttling device is adjusted in order to bring a high pressure PH in a refrigeration cycle close to a predetermined value determined based on a value at which the coefficient of performance (COP) of the heat pump is optimized, and after the first controlling is completed, it executes a second controlling in which the opening of the second throttling device is adjusted in order to bring a degree of superheat SH close to a predetermined positive value. This ensures smooth and stable operations of the heat pump.
    Type: Application
    Filed: September 29, 2006
    Publication date: March 29, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Masaya HONMA, Yuuichi YAKUMARU, Tomoichiro Tamura, Tetsuya SAITO
  • Publication number: 20070057985
    Abstract: In a recording apparatus using a recording head which can eject ink droplets having different sizes, there is a problem the recording image quality is decreased or mist is generated when the recording is performed to a predetermined area of a recording medium In the ink droplets having the different sizes, the size of the ink droplet used for the recording is set in accordance with the recording area to perform the recording based on the setting.
    Type: Application
    Filed: June 10, 2004
    Publication date: March 15, 2007
    Applicant: Canon Kabushiki Kaisha
    Inventors: Tetsuya Saito, Souhei Tanaka, Keiji Tomizawa, Mineo Kaneko
  • Patent number: 7185964
    Abstract: A printing method and printing apparatus can print a high-quality image free from any visual graininess by reducing density unevenness and color unevenness. In printing by discharging ink from a printhead onto a printing medium, the printing apparatus executes either one of (A) a first printing operation mode in which one dot layout pattern is assigned to a plurality of pixels at the same gradation level and printing is done on the basis of the assigned dot layout pattern, or (B) a second printing operation mode in which plural types of dot layout patterns are assigned to a plurality of pixels at the same gradation level and printing is done on the basis of the assigned dot layout patterns.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: March 6, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidehiko Kanda, Takeji Niikura, Tetsuya Saito
  • Patent number: 7180452
    Abstract: A portable radio apparatus capable of providing an impedance match with an antenna and a simple matching circuit for all frequency components of a frequency band to be used. A portable radio apparatus includes a whip antenna, a matching circuit, a radio section changing switch, a first frequency band receiver, and a first frequency band transmitter. A parallel inductor causing a resonance with a frequency lower than a resonance frequency of the antenna is connected in parallel to the antenna for a two-resonance characteristic to thereby conduct a wide-band operation.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: February 20, 2007
    Assignee: NEC Corporation
    Inventor: Tetsuya Saito
  • Publication number: 20070019252
    Abstract: An image reading/recording apparatus which can prevent a reading unit from closing abruptly and reduce the force required to open the reading unit is to be provided. The apparatus is equipped with a damper unit which links the apparatus body and the scanner unit and the working direction of whose force is reversed on the way of the turning of the scanner unit, and a metal-made supporting member which is arranged in the apparatus body and supports the damper unit in a state in which the scanner unit is closed relative to the apparatus body.
    Type: Application
    Filed: July 17, 2006
    Publication date: January 25, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Ogushi, Nozomu Nishiberi, Masaaki Ishihara, Tetsuya Saito, Nobuhiro Toki, Masahiro Kawanishi, Tomoko Ueno
  • Publication number: 20060283610
    Abstract: A sub-soiler has a plow bottom for subsoil for opening a furrow in a subsoil layer and raising subsoil so as to discharge the subsoil on the surface on one or both sides of the furrow and a plow bottom for top soil, located on the subsoil discharge side posterior to the plow bottom for subsoil, for breaking a top soil layer and dispersing subsoil clods discharged on the surface by the plow bottom for subsoil. Permeability of the soil at the furrow opened in the subsoil layer is improved by dispersing clods of the discharged subsoil and breaking up the top soil.
    Type: Application
    Filed: May 24, 2006
    Publication date: December 21, 2006
    Applicant: Sugano Farm Machinery Mfg. Co., Ltd.
    Inventors: Mitsuya Sugano, Kazuharu Imai, Tsuyoshi Shimomura, Masayuki Murata, Hideki Ishigaki, Ryuji Tanaka, Tetsuya Saito, Takaharu Kozaki
  • Publication number: 20060266057
    Abstract: The present invention provides a heat pump including: a compressor; a radiator; a first throttling device having a variable opening; an expander; a second throttling device having a variable opening; an evaporator; piping that connects the compressor, the radiator, the first throttling device, the expander, the second throttling device, and the evaporator so that refrigerant circulates thorough the elements in that order; and a control device for controlling the opening of the first throttling device and the opening of the second throttling device. This heat pump is capable of independently controlling the pressure of the refrigerant flowing into the expander (intermediate pressure) and pressure in a high-pressure side of a refrigeration cycle, and also is capable of size reduction, or in some cases elimination, of a receiver for the refrigerant.
    Type: Application
    Filed: August 2, 2006
    Publication date: November 30, 2006
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Yuuichi Yakumaru, Tomoichiro Tamura, Tetsuya Saito, Masaya Honma
  • Publication number: 20060191639
    Abstract: The object of the present invention is to prevent damage due to thermal stress induced into a substrate holding table in a substrate holding structure for holding a substrate to be processed. In the substrate holding structure having the substrate holding table arranged at the top of a support column, a flanged part is defined by an inner circumferential surface and an outer circumferential surface at a joint between the support column and the substrate holding table. The inner circumferential surface is formed of an inclined surface, which is inclined such that the inner diameter of the flanged part successively increases as approaching the lower surface of the substrate holding table. On the lower surface of the substrate holding table to which the flanged part is joined, a U-shaped groove is formed so as to correspond to the outer circumferential surface of the flanged part.
    Type: Application
    Filed: August 18, 2004
    Publication date: August 31, 2006
    Inventors: Sumi Tanaka, Tetsuya Saito, Masuhiro Natsuhara, Hirohiko Nakata
  • Publication number: 20060160359
    Abstract: A vacuum processing apparatus is constituted of the following portions: a processing container with the bottom, capable of drawing vacuum; a placement platform installed in the container; a heating portion for heating a substrate on the platform; a processing gas-feeding portion for feeding a processing gas into the container; a partitioning portion surrounding a space between the platform and the bottom of the container and partitioning off the space from a processing space in the container; a purge gas-feeding portion for feeding a purge gas into the space surrounded by the partitioning portion; a purge gas-discharging portion for discharging the purge gas from the space surrounded by the partitioning portion; a control portion for controlling the purge gas-feeding portion and/or the purge gas-discharging portion so as to regulate the pressure in the space surrounded by the partitioning portion; and a temperature-detecting portion penetrating the bottom of the container, inserted in the space surrounded by
    Type: Application
    Filed: February 12, 2004
    Publication date: July 20, 2006
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Shigeru Kasai, Susumu Katoh, Tomohito Komatsu, Tetsuya Saito, Sumi Tanaka